<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<link rel="stylesheet" href="css/bootstrap.css">
		<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
		<script src="js/js/bootstrap.bundle.min.js" type="text/javascript" charset="UTF-8"></script>
		<script src="js/js/bootstrap.min.js" type="text/javascript" charset="UTF-8"></script>
		<script src="js.jQuery3.4.1.js" type="text/javascript" charset="UTF-8"></script>
		
	</head>
	<body>
		<!-- Bootstrap的原则，能不写css就不写，js最好不写 -->
		<!-- Bootstrap中的js做了封装，命名方式 data-切换方式="切换的组件名称"
		下拉菜单 切换的方式是开关 toggle
		data-toggle="dropdown" -->
		<div class="container">
			<div class="btn-group">
				<button type="button" class="btn btn-info">免费注册</button>
				<button type="button" class="btn btn-info">手机逛淘宝</button>
				<div class="btn-group">
					<button type="button" class="btn btn-info dropdown-toggle" data-toggle="dropdown">我的淘宝</button>
					<div class="dropdown-menu">
						<a href="#" class="dropdown-item">我已买到的宝贝</a>
						<a href="#" class="dropdown-item">我的足迹</a>
					</div>
				</div>
			</div>
		</div>
	</body>
</html>
